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1) I re-registered the filters and the process succeeded (all DllRegisterServer prompts were OK).

2) I can view all cable channels and record from them normally. The problem is only with the composite channels. They have no picture, no signal, not anything.

3) Between the smooth operation since few weeks and the problem cropping up, I installed the following software :

a) Cisco Connect for my new Wifi router.
b) During the above installation, I had to first upgrade my Windows XP SP2 to SP3 before I could complete the step.
c) Teamviewer remote access client.

4) I noticed another problem today which may give clue. I have 4 cards and have configured 2 composite channels, on card 1 and card2 respectively. However, when I record from Composite1, and then also try to record from Composite2, it shows a recording conflict and says I must cancel one of my ongoing recordings. Why is that if the 2 composite channels are configured on physically different cards?.

Hi.
4) I noticed another problem today which may give clue. I have 4 cards and have configured 2 composite channels, on card 1 and card2 respectively. However, when I record from Composite1, and then also try to record from Composite2, it shows a recording conflict and says I must cancel one of my ongoing recordings. Why is that if the 2 composite channels are configured on physically different cards?.

gbpvr not recognizing the second available tuner, could be caused by both composite sources using the same cards (easy to overlook). Also, did you have any analog (non-composite) source recordings schedule to take period? On both cards, you can use either the analog tuner or the composite source at a time, but not both source at the same time.

The two composite channels are configured on different cards which are in turn configured on different capture devices (physical tuners). For example capture source Card1 is configured on board Number Capture Device1. Similarly, second capture source is on Capture Device2 and so on.

Moreover, since there are four capture sources (4 tuners) configured while only two composite channels, thus even if there is a couple of recordings going on, the tuners of the composite channels should be free to record.

But i have a question. If we start a cable tv recording and then start a composite channel recording, will the cable recording automatically switch over to the next available tuner? The composite channel cannot switch over as it is configured on a fixed tuner card. In that case, a conflict can occur. Tell me if my understanding is correct.

But i have a question. If we start a cable tv recording and then start a composite channel recording, will the cable recording automatically switch over to the next available tuner? The composite channel cannot switch over as it is configured on a fixed tuner card. In that case, a conflict can occur. Tell me if my understanding is correct.

Once a recording has started it cannot change sources. If you have some tuners that are configured as two sources (RF and composite) then if the RF (cable?) grabs that tuner then no composite is possible. The other way round is better - where composite grabs that tuner, but leaves the others free.
This is where positioning of sources in the list has an effect where the recording service and live TV start at different ends of the list and work their way up/down (sorry, unsure at the moment if the recrding service if top-down or not).

I understand the sequence. However, i configured the composite channels on Card1 and Card2 while cable recording starts in reverse sequence, Card4, then Card3, ans so on. Thus, unless i am carrying our more than four recordings simultaneously (which I have never done), I should not be getting this message...